Friendship paradox

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Notion

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Science and technology

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What Wikipedia says

The friendship paradox is the phenomenon first observed by the sociologist Scott L. Feld in 1991 that typically, an individual's friends have more friends than that individual. It can be explained as a form of sampling bias in which people with more friends are more likely to be in one's own friend group.

Excerpt from the Wikipedia article “Friendship paradox”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: ADuvvuru, CC BY 3.0, via Wikimedia Commons.